The Japanese imperial family line is said to have the longest history in the world.

She often reads books on spirituality.

She is deeply devoted to the New Age spirituality.

He loves 'Narou-kei' novels and reads them every day.

Paleoecology is a field of study that investigates the relationship between past organisms and their environment.

He is an expert in paleoecology, pouring his passion into studying past ecosystems.

Global warming is a big issue that affects all of us.

He is an expert in geophysics.

He believes in the geocentric theory.

A terrestrial planet may have an environment similar to Earth.